How is a 4 on 4 Inch Wheel Bolt Pattern Measured

Question

Question:

Im interested in purchasing 12inch wheels. When it is said 4 on 4 do you measure diagonally or horizontally or vertically?

asked by: Bob P

0

Expert Reply:

A 4 on 4 inch bolt pattern is measured diagonally on center. The first number indicates the number of lug holes and the second number indicates the diameter of the circle that those holes sit on. Check out the wheel bolt pattern help article that I attached. I have also attached a link to all of our 12 inch trailer wheels and tire/wheel combos that have a 4 on 4 inch bolt pattern for you to check out.

expert reply by: John H

0

Answer 1

The correct replacement for Atwood 7" x 1-3/4" Hydraulic Drum Brakes is the Dexter Hydraulic Trailer Brake Kit part #23-398-399. If you are having trouble removing the old brakes, I recommend applying heat but you can cut the nuts…

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Answer 2

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 3

Yes, there is a measurement you can take to determine what size brakes you need and if they will fit your existing drums. You will want to measure the diameter of your drums. I have included a diagram detailing the dimensions you will need to find.…

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Answer 4

The 12 inch tires that we carry are rated for 65 miles per hour. Any faster than that for extended periods and the excessive heat build up will cause tire failure. To get a tire with a higher speed rating you would have to go up in size. That also…

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Answer 5

Load range B trailer tires are going to have a lower capacity than C load range tires. Basically that, psi rating, and the ply rating are the only differences. A higher load range tire would last a little longer than lower load ranges of the same…

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Answer 6

In order to give you an exact torque specification for your trailer wheels, I would need to know the stud size in addition to the diameter that you provided. For example, the most popular 8" diameter wheel we sell with a 4 on 4" lug pattern…

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Answer 7

The spindle nut on a trailer axle should not be difficult to remove, it only requires a very small amount of torque. It should for the most part just turn off by hand after the retainer is removed whether it's a clip or pin. We don't have a…

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Answer 8

I will be happy to recommend different tires for your trailer. However keep in mind that going to a higher capacity tire does not increase the capacity of the trailer. That is set by the axle and other components. A 145/80-12 tire would be a good…

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Answer 9

The downside to buying a "bargain" trailer kit is that customer support, both in terms of helpful information and available replacement parts, can be scarce. The other issue is that products made to sell at a tempting price point may not…

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Answer 10

The closest radial tire size I would have to replace the 4.80-12 bias tire size is the Kenda Karrier S-Trail ST145R12 Radial Trailer Tire #AM10130. The 4.80-12 bias tire is 20.7 inches tall and 4.9 inches wide. The 145R12 radial tire is 21.3 inches…

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Answer 11

The smallest diameter 13 inch trailer wheel and tire will have a diameter of 24.1 inches (ST175/80-13). There are 3 common 12 inch trailer tire sizes: 4.80-12 has a diameter of 20.5 inches, 5.30-12 has a diameter of 21.9 inches, and 145/80-12 has a…

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Answer 12

I highly recommend the Taskmaster 5.30R12 Radial Trailer Tire #TT53012C for your trailer. This is an excellent, radial ply trailer tire that features a maximum load of 1,050 pounds at 80 psi along with a maximum speed of 81 mph. You will just need to…

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